Newly crowned WWE world champ The Miz has stormed into the newsroom to host today's "TMZ on TV" -- and it's already getting INTENSE!!

And yes, Miz brought the belt with him.

Miz had a lot of good comedy moments, especially when they started talking Ryan Seacrest. He really got a chance to show off his personality and remind us all that he's going to make a great babyface when he finally has to make the turn. Got a big kick out of the Cleveland-native Miz ranting on the Yankees.